Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 aeb48724220a8616…

MALICIOUS

Office (OLE) / .XLS

525.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2026-05-24
MD5: 32e6c61ed21b04c17ad8a16b1aa730e4 SHA-1: 59da397542e526c974bc43ce6403cc9ef51ca999 SHA-256: aeb48724220a861683f39b7388cda4b1bbbd597130eb21af008c5f6591bf4a55
142 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious Macro T1566.001 Phishing: Spearphishing Attachment

The presence of an XLM macro sheet and a heuristic firing for content-enable lures strongly suggests this Excel file is designed to trick users into running malicious code. The embedded URLs likely serve as download locations for secondary payloads. No document body text was available for further analysis of the lure's specific content.

Heuristics 5

  • XLM Auto_Open workbook with payload URL or enable-content lure critical OLE_XLM_AUTOOPEN_PAYLOAD_LURE
    Workbook contains an Excel 4.0 macro sheet with Auto_Open / Auto_Close and also exposes a payload URL or enable-content lure in the OLE bytes. This combination is a high-confidence XLM downloader/social-engineering pattern even when formula recovery cannot decode the full macro chain.
  • Excel 4.0 (XLM) macro sheet uses dangerous capability functions high OLE_XLM_DANGEROUS_FN_STATIC
    Workbook contains an Excel 4.0 macro sheet whose formulas reference two or more dangerous capability functions (e.g. CALL into a Win32 API such as URLDownloadToFile, EXEC to launch a process, REGISTER an external DLL procedure, or FWRITE/FOPEN to drop a file) with an Auto_Open / Auto_Close auto-execution name. This is the canonical XLM downloader/dropper shape and is recovered directly from the BIFF records, so it fires even when the full macro chain cannot be deobfuscated.
  • Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPEN
    Workbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://rathnakumar.com/BuTxTGO63eD/solo.html In document text (OLE body)
    • https://maidzonemobile.com/Voy4zCN8y1/solo.htmlIn document text (OLE body)

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